Gentamicin, sold under brand names Garamycin among others, is an antibiotic used to treat several types of bacterial infections.[1] This may include bone infections, endocarditis, pelvic inflammatory disease, meningitis, pneumonia, urinary tract infections, and sepsis among others. It is not effective for gonorrhea or chlamydia infections.
Rod Details. The rods are the most numerous of the photoreceptors, some 120 million, and are the more sensitive than the cones. However, they are not sensitive to color. They are responsible for our dark-adapted, or scotopic, vision.The rods are incredibly efficient photoreceptors.owever, they are not sensitive to color. The 6 to 7 million cones provide the eye's color sensitivity and they are much more concentrated in the central yellow spot known as the macula. In the center of that region is the  fovea centralis , a 0.3 mm diameter rod-free area with very thin, densely packed cones.
A photoreceptor, or photoreceptor cell, is a specialized type of neuron (nerve cell) found in the eye 's retina that is capable of phototransduction. The great biological importance of photoreceptors is that as cells they convert light (electromagnetic radiation) into the beginning of a chain of biological processes.he two classic photoreceptors are rods and cones, each contributing information used by the visual system to form a representation of the visual world, sight. The novel third photoreceptor is a recently discovered class of photosensitive ganglion cells.